Background
wp-calypso and the tests can be found in the /test/e2e
directory.
NOTE: This repo has been merged in to A wrapper repo to split off execution of the WooCommerce WordPress.com e2e tests running in Calypso from Automattic/wp-e2e-tests
If you need to make changes to these e2e tests you will need to merge these into master in Automattic/wp-e2e-tests for this repository to pick them up.